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The opportunistic marine pathogen Vibrio parahaemolyticus becomes virulent by acquiring a plasmid that expresses a deadly toxin
TLDR
It is shown that an AHPND-causing strain of V. parahaemolyticus contains a 70-kbp plasmid with a postsegregational killing system, and that the ability to cause disease is abolished by the natural absence or experimental deletion of the plasmids-encoded homologs of the Photorhabdus insect-related toxins PirA and PirB. Expand
Structure, mechanism and function of prenyltransferases.
TLDR
The structures of Ras farnesyltransferase and Rab geranylgeranyltransferase are used to elucidate the reaction mechanism of this group of enzymes, and the mechanism that controls product chain length and the reaction kinetics of IPP condensation in the cis-type and trans-type enzymes are focused on. Expand
Bisphosphonates target multiple sites in both cis- and trans-prenyltransferases
  • R. Guo, R. Cao, +11 authors A. H. Wang
  • Chemistry, Medicine
  • Proceedings of the National Academy of Sciences
  • 12 June 2007
TLDR
These results are of general interest because they provide the first structures of GGPPS- and UPPS-inhibitor complexes, potentially important drug targets, in addition to revealing a remarkably broad spectrum of binding modes not seen in FPPS inhibition. Expand
Mechanism of the Maturation Process of SARS-CoV 3CL Protease*[boxs]
TLDR
It is reported here that the 3CLpro containing additional N- and/or C-terminal segments of the polyprotein sequences undergoes autoprocessing and yields the mature protease in vitro, and the dimeric three-dimensional structure of the C145A mutant protease shows that the active site of one protomer binds with the C- terminal six amino acids of the protomer from another asymmetric unit, suggesting a possible mechanism for maturation. Expand
The crystal structure of the DNase domain of colicin E7 in complex with its inhibitor Im7 protein.
TLDR
The protein interfaces between the DNase domain of ColE7 and Im7 are charge-complementary and charge interactions contribute significantly to the tight and specific binding between the two proteins. Expand
The refined crystal structure of an eel pout type III antifreeze protein RD1 at 0.62-A resolution reveals structural microheterogeneity of protein and solvation.
TLDR
After extensive refinement that includes hydrogen atoms, significant residual electron densities associated with the electrons of peptides and many other bonds could be visualized. Expand
Crystal structure of the left-handed archaeal RadA helical filament: identification of a functional motif for controlling quaternary structures and enzymatic functions of RecA family proteins
TLDR
The crystal structure of a left-handed Sulfolobus solfataricus RadA helical filament shows an evolutionarily conserved hinge region (a subunit rotation motif) in which a 360° clockwise axial rotation accompanies stepwise structural transitions from a closed ring to the AMP–PNP right- handed filament, then to an overwound right-handed filament and finally to the left-anded filament. Expand
Structure and Mechanism of an Arabidopsis Medium/Long-Chain-Length Prenyl Pyrophosphate Synthase1[W][OA]
TLDR
Biochemical and genetic complementation analyses indicate that AtPPPS synthesizes C25 to C45 medium/long-chain products and a mutant of contiguous surface polar residues was produced by replacing four charged surface amino acids with alanines to facilitate the crystallization of the enzyme. Expand
Crystal Structures of Undecaprenyl Pyrophosphate Synthase in Complex with Magnesium, Isopentenyl Pyrophosphate, and Farnesyl Thiopyrophosphate
TLDR
The results here improve the understanding of the UPPs enzyme reaction significantly and suggest other conserved residues, including His43, Ser71, Asn74, and Arg77, may serve as general acid/base and pyrophosphate carrier. Expand
The Three-Dimensional Structure of Canavalin from Jack Bean (Canavalia ensiformis)
TLDR
The three-dimensional structure of the vicilin storage protein canavalin has been determined in a hexagonal crystal by x-ray diffraction methods and the majority of residues conserved between domains and among vicilins occur at the interface between subunits. Expand
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